Manipulators in C++ (OOPs)

Some standard manipulators are used in C++ (OOPs) which are stored under header file iomanip.h. Under this it has capabilities to show inter-conversions like binary, decimal, hex-decimal, set the precision for more accurate answer and various other functions like you can see in the programs.

/* Program to show use of endl function in C++ */

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

main()

{

      cout<<"\n Bansal B.tech Learning";

      cout<<endl;

      cout<<" Stairs of Bright Future...";

      cout<<endl<<endl<<" Function of (endl) is making the function move to next line";

      getch();

      }

/* Program to show use of setw() function in C++ */

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

main()

{

      cout<<"\n "<<setw(20)<<"Bansal B.tech Learning"<<"\n "<<setw(19)<<"Stairs of Bright Future...";

      cout<<"\n\n "<<"Function of [setw(number)] is including desired number of spaces";

      getch();

      }

/* Program to show use of setprecision() function in C++ */

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

main()

{

      int a,b;

      cout<<"\n Enter any value of a and b";

      cin>>a>>b;

      cout<<"\n "<<setprecision(4)<<float(b)/a;

      getch();

      }

/* Program to convert decimal number to binary, hex-decimal and octal*/

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

main()

{

      int n;

      cout<<"\n Enter any number";

      cin>>n;

      cout<<"\n Decimal value is "<<dec<<n;

      cout<<"\n Octal value is "<<oct<<n;

      cout<<"\n Hexa-decimal value is "<<hex<<n;

      getch();

      }